Combination of Feature Sets Based on Binary Pattern and Oriented Gradient for Efficient Face Classification
Generally, the face is one of the most important research, especially, face classification in pattern recognition. In this paper, based on the Local Binary Pattern (LBP) descriptor and its Uniform Local Binary Pattern (ULBP) variant, we propose to merge a set of different descriptors features which consist of Histograms of Oriented Gradient (HOG), Global Discrete Cosine Transform (GDCT), and Local Discrete Cosine Transform (LDCT). First, we
used ULBP, SLBP, and each previously mentioned techniques separately. Then, we combined them with LBP algorithm with two versions ULBP and SLBP. Afterward, we exploit them as an input of varied classification methods, as Polynomial-Support Vector Machine (Polynomial-SVM), RBF-SVM, Linear-SVM, K Nearest Neighbors (KNN) and AdaBoost. We evaluate the performance of our approach using two facial databases. The first one is BOSS. The second one is MIT-CBCL database. The experimental results reveal that the fusion features of LBP and HOG descriptors with SVM classifier exhibits robust performance
in terms of accuracy and computation time in both databases, even if, the HOG achieved a good classification result when we used it alone with 99;9% on BOSS database, which demonstrates the robustness of our database.
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